Wound irrigation and negative pressure drainage device and usage method thereof

Abstract

The invention relates to a wound irrigation and negative pressure drainage device formed by the connection of a wound contact device, a pouring and negative pressure device, a display control device and a power supply device; the wound contact device is composed of foam dressing and a guide channel; the pouring and negative pressure device consists of a waste liquid and liquid storage container, a negative pressure bag, a liquid storage bag, a separating plate, a spring, a pressure sensor, a flow sensor, a negative pressure pipe, an infusion pipe, a negative pressure pipe valve, and an infusion pipe valve; and the display control device comprises a display and a central processing unit. The negative pressure bag is arranged between a top cover of the waste liquid and liquid storage container and the separating plate, the separating plate can move vertically inside the waste liquid and liquid storage container according to the pressures of the upper and lower surfaces of the separating plate, when the infusion pipe valve is opened, liquid in the liquid storage bag can be actively infused into the foam dressing, while the flow sensor measures the flow rate of the liquid in the pipe in real time, and when the total pouring amount reaches a preset value, the central processing unit starts the pipe valve, and closes the infusion pipe.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a wound washing and negative pressure treatment device. Background technique [0002] In 1993, Fleischmann found that negative pressure could accelerate the disappearance of wound edema, promote the proliferation of granulation tissue and reduce the local bacterial load. Subsequent studies have found that negative pressure wound therapy techniques can be used in the repair of acute, subacute, and chronic wounds. At present, wound negative pressure therapy technology has become one of the standard methods of wound treatment. In the long-term clinical application process, negative pressure wound therapy technology has also exposed defects such as insufficient tissue cleaning ability and single wound treatment method. Studies have found that wound negative pressure therapy combined with wound perfusion technology can help improve wound cleaning ability and accelerate wound...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a new type of wound surface washing and negative pressure drainage device design and its use method, which can overcome the shortcomings of the prior art such as complex structure, large volume, short battery life, high secondary pollution rate of the wound surface, etc.

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